Building units and construction elements – Architectural stock material – Extruded shape
Design Patent
2007-01-16
2007-01-16
Clark, Doris (Department: 2914)
Building units and construction elements
Architectural stock material
Extruded shape
Design Patent
active
29244140
CLAIM:
The ornamental design for a patio door panel interlock sash extrusion, as shown and described.
REFERENCES:
patent: 4023326 (1977-05-01), Azuma et al.
patent: 4553364 (1985-11-01), Legg et al.
patent: D382072 (1997-08-01), Dallaire et al.
patent: 5682714 (1997-11-01), Ishikuro et al.
patent: D406907 (1999-03-01), DiGiorgio
patent: D490912 (2004-06-01), Habeck et al.
patent: 6823643 (2004-11-01), France
Habeck Jerome Carl
Westphal Dennis
Certain Teed Corp.
Clark Doris
Duane Morris LLP
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